When the timer winding T250–driven input X0 is switched on, the T250 is the current number of clock pulses the counter starts accumulating 100ms, K123 when the set values are equal, the normally open contact of the timer switched on, disconnect the normally closed contact. When the count intermediate driver input X0 disconnect or power failure, can maintain the current value, enter X0 and then when connected or wired, counting continued. When 0.1sx123=12.3s is cumulative time, output contact action. X1 when reset input is switched on, the timer is reset, the output contacts reset.
PLC ONE 